Feature:        1.Need to drill an Extra Hole with a diameter of 0.6''（15mm）to strengthen this lock before you install it.        2.Please Long Press “ ” to lock when you outside the door without phone.        3.If spindle is too long, cut off excess parts according to the thickness of the door.        4.Smart Lever Door Lock stores your fingerprint locally instead of being on the Cloud. We’re striving to protect your privacy.        5.Our door is suitable for both left and right doors. Just leave the screw to rotate. Before installing the door, please confirm the direction of your door.        6.With such simple modern design, our Keyless Entry Door Lock is exactly easy to Install compare with other heavy and complicate smart door lock, non-tech-savvy could install it within several minutes                         Specification:        Color:Black        Panel Material: Aluminum Alloy        Door Thickness:35-55mm        Voltage: DC6V        Power Supply: 4X1.5v AA Alkaline Batteries (Not included)        Dynamic Power Consumption: 150-300mA        Static Power Consumption :< 30µA        Fingerprint Capcity: 100 piece        Password Capacity: 300 piece        IC Cards Capacity: 1000 piece        Size: 140X60X16mm (Front), 155X68X28mm(Back)        Specifications: password + key + APP+Fingerprint        Application: wooden doors, doors, office doors, apartment doors     APP:Tuya                  Package including:        1X Touch Screen Escutcheon     1X Interior Escutcheon   1X Latch   1X Strike Plate   2 X Cards   15X Screw   3X Backup Key   1X Connecting Solenoid   1X Template Card